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1. (WO1992010753) DYNAMIC PYROTECHNICAL PENETROMETER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010753 International Application No.: PCT/FR1991/000997
Publication Date: 25.06.1992 International Filing Date: 10.12.1991
Chapter 2 Demand Filed: 07.07.1992
IPC:
E02D 1/02 (2006.01) ,G01N 3/48 (2006.01) ,G01N 33/24 (2006.01)
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
D
FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
1
Investigation of foundation soil in situ
02
before construction work
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
3
Investigating strength properties of solid materials by application of mechanical stress
40
Investigating hardness or rebound hardness
48
by performing impressions under impulsive load by indentors, e.g. falling ball
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33
Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
24
Earth materials
Applicants:
CASTAGNER, Bernard [FR/FR]; FR
Inventors:
CASTAGNER, Bernard; FR
Agent:
PHELIP, Bruno; Cabinet Harlé & Phélip 21, rue de La Rochefoucauld F-75009 Paris, FR
Priority Data:
90/1551212.12.1990FR
Title (EN) DYNAMIC PYROTECHNICAL PENETROMETER
(FR) PENETROMETRE DYNAMIQUE PYROTECHNIQUE
Abstract:
(EN) The dynamic pyrotechnical penetrometer determines soil characteristics by using the pressure created by a pyrotechnical gas generator to drive a probe rod (1) into the ground, with continuous detection and measurement of penetration. A standard probe rod mounted on a piston (2) containing a magnet (3) is placed in a solenoid-equipped amagnetic tube. A recoiling mass (4) which balances the amount of rod movement created by the gas from a pyrogenerator (5) contained in said recoiling mass, is then also placed in said tube. A unit for acquiring and processing the movement data of the standard rod calculates the resistance of the ground in response to the insertion of the rod.
(FR) Le pénétromètre dynamique pyrotechnique permet de déterminer les caractéristiques des sols par l'enfoncement, détecté et mesuré en continu, d'une tige sonde (1) à l'aide de la pression créée par un générateur de gaz pyrotechnique (5). Dans un tube amagnétique équipé de solénoïdes, on place d'une part, une tige sonde (1) étalon fixée sur un piston (2) dans lequel on loge un aimant (3) et d'autre part, une masse reculante (4) qui équilibre la quantité de mouvement de la tige créée par les gaz d'un générateur pyrotechnique (5) contenu dans cette masse reculante. Un boîtier d'acquisition et de traitement de mouvement de la tige étalon permet de calculer la résistance du sol à l'enfoncement de la tige.
Designated States: AU, BG, BR, CA, FI, HU, JP, KP, KR, NO, PL, RO, SU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
FI932673NO19932161MXPA/a/1991/002513IL100296ZA1991/09696ES2068024
EP0561968RU02101416US5591902JPH06503619CA2098091DE000069105280
PT99764FR2670582DK0561968AU1991091301ID002.519